This part is a kind of semiconductor called ADM3485E.

Function of this product has EIA RS-485/RS-422 Transceiver.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

±15 kV ESD-Protected, 3.3 V,12 Mbps, EIA RS-485/RS-422 Transceiver ADM3485E FEATURES TIA/EIA RS-485/RS-422 compliant ±15 kV ESD protection on RS-485 input/output pins 12 Mbps data rate Half-duplex transceiver Up to 32 nodes on the bus Receiver open-circuit, fail-safe design Low power shutdown current Outputs high-Z when disabled or powered off Common-mode input range: −7 V to +12 V Thermal shutdown and short-circuit protection Industry-standard 75176 pinout 8-lead narrow SOIC package APPLICATIONS Power/energy metering Telecommunications EMI-sensitive systems Industrial control Local area networks GENERAL DESCRIPTION The ADM3485E is a 3.3 V, low power data transceiver with ±15 kV ESD protection, suitable for half-duplex communication on multipoint bus transmission lines. The ADM3485E [ ... ]

ADM3485E PDF Datasheet Download